With reference to your query regarding blocking of specific files on a system, the mentioned feature is already available in eScan version 11 HOME / SOHO editions.
You may download the HOME / SOHO edition from the below link inorder to test the same
http://download1.mwti.net/wiki/index.php/EScan_for_Windows_v11

The feature will be available in eScan version 11 Corporate editions as well which will be released in a few weeks.